公开(公告)号：US20230052138A1

公开(公告)日：2023-02-16

申请号：US17758242

申请日：2021-04-08

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Zhe JIANG ,  Xinran DONG ,  Fuqiang XU ,  Yushan LI

IPC: B60L1/08 ,  B60L58/10

Abstract: A motor control unit, a control system, and a storage medium. The method of the present invention is applied to the motor control unit and comprises: when a vehicle is in a high-voltage power-on state, obtaining a plurality of effective temperature values for the same motor system; determining a corresponding initial temperature value according to each effective temperature value; determining the minimum value among all calculated initial temperature values as an initial environment temperature; when the vehicle is in a driving state and each initial temperature value is less than or equal to respective corresponding threshold, and the current temperature of a motor no longer rises, calculating differences between the current temperature of the motor and the corresponding initial temperature value and between the current temperature of a cooling liquid and the corresponding initial temperature value; calculating a temperature calibrate amount for the environment temperature according to the calculated differences.

公开(公告)号：US20230060311A1

公开(公告)日：2023-03-02

申请号：US17790196

申请日：2021-01-07

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Shuai ZHANG ,  Shujiang CHEN ,  Wentao HOU ,  Xinran DONG ,  Ce SUN ,  Jiaxin SUN ,  Weifeng DENG

IPC: B60W30/18

Abstract: A method for parking control is provided in the present application, which includes the following steps: determining whether a single-pedal mode is activated determining whether conditions for deceleration control are met when the single-pedal mode is activated; controlling the new-energy vehicle to decelerate when the conditions for deceleration control are met; determining whether conditions for sending a brake request to a motor controller are met during a process of controlling the new-energy vehicle to decelerate; sending the brake request to the motor controller when the conditions for sending a brake request to the motor controller are met; and sending a parking request to an electronic handbrake when the new-energy vehicle is in the brake mode and the speed of the new-energy vehicle is smaller than the third preset value for a third preset time, enable the new-energy vehicle to enter in a parking mode.

公开(公告)号：US20230041744A1

公开(公告)日：2023-02-09

申请号：US17790296

申请日：2021-04-22

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Liang XIONG ,  Zhe JIANG ,  Yongluan ZHANG ,  Xinran DONG ,  Guowei SONG ,  Meng LIU ,  Pingyuan LUO ,  Yushan LI ,  Zelin GAO ,  Yadong WANG

IPC: B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H01M10/63 ,  H01M10/657 ,  H01M10/66

Abstract: A method for controlling heating of a battery pack is provided, in which, the method includes: acquiring a temperature of the battery pack; and controlling a motor controller to output a current to a motor, if the temperature of the battery pack is lower than a preset temperature threshold, so as to generate a magnetic field in the motor having a magnetic pole direction consistent with or opposite to a magnetic pole direction of a motor rotor and to enable the motor to maintain a stationary state.